yashsingh1/xdaforums huggingface dataset:
[Verizon Samsung Galaxy S 4] budding_developer:
No, just don't like being called a liar; phrasing is everything, and he wasn't even subtle about it. My statements were based on my own personal experience and I can accept being wrong -- if I failed to do something that would have let me do it that I didn't know about, then no problem. But to come right out and phrase it like he did was unacceptable.
[Verizon Samsung Galaxy S 4] joshm.1219:
Okay, he just disagreed with what you said though. He didn't call you a liar, and his statements are based on his own personal experience. It's not a lie many people use Verizon phones on Tmo, I remember when Tmo started their "uncarrier" campaign a bunch of Note 2 people changed over with no trouble.
[Verizon Samsung Galaxy S 4] justda:
I know this is an old thread, and no real need for my response BUT

I have been using a T-Mobile sim in my I-545 S4 (and my wife's Verizon Note 2) since 2 weeks after they were released on Verizon. All I did was insert the sim, change the APN and change to GSM. worked great all on the stock (but rooted) ROM (Non rooted on my wife's Note 2) Texting calling interwebs all worked.

THEN the new modems came out, I did all the above steps, but after putting it into GSM and rebooting I popped back into Global and everything worked great again.I have flashed everything from Hyperdrive to Eclipse, to CM11 to now the new 4.4.2 leak ported over the verizon. I even attempted to create my own ROM that was ****, but still had LTE data. I only had issues with CM11 CM would not work period (Until last week when someone created a flash-able zip that fixed the radio issues) every other roms (including stock) worked great with no issues.

I am not calling you a liar, I am telling you that you were/are misinformed... ALL Verizon phones released since the note 2 and some even before that, are global unlocked phones (even in the U.S.) no rooting or custom ROMS or radio's required. If you could not get it to work on your phone you are/were either to impatient to wait for the signal to lock, or you missed a step or misspelled the APN.
[Verizon Samsung Galaxy S 4] Dovigoldberger:
did anyone get unlimited hotspot working on tmobile network?
[Verizon Samsung Galaxy S 4] dcg915:
APN AT&T

In case anybody else needs APN info for AT&T these settings worked for me. I dont get LTE but i do get hspa+ for me its averaging 12Mbps down so its not to bad. Im running the AOSP Official Google Edition posted by Danvdh, it is f***ing awesome imo, i did have to put apn info in manually to get mms working.

Verizon s4 running on at&t network

Name: AT&T

APN: pta

Proxy:

Port:

Username:

Password:

Server:

MMSC: http://mmsc.mobile.att.net/

MMS Proxy: proxy.mobile.att.net

MMS Port: 80

MCC: 310

MNC: 410

Authentication Type:

APN Type: default,admin,fota,mms,supl,hipri

APN Protocol: IPv4/IPv6

APN Roaming Protocol: IPv4/IPv6
[Verizon Samsung Galaxy S 4] icebear8:
Would a Verizon s4 work on a US cellular pre paid plan?
[Verizon Samsung Galaxy S 4] justda:
yes, not sure about LTE but yes it will work

BTW

Here is the T-Mobile APN settings if anyone needs it:

Name: T-Mobile

APN: fast.t-mobile.com

Proxy: <Not set>

Port: <Not set>

Username: <Not set>

Password: <Not set>

Server: <Not set>

MMSC: http://mms.msg.eng.t-mobile.com/mms/wapenc

MMS proxy: <Not set>

MMS port: <Not set>

MMS protocol: WAP 2.0

MCC: 310

MNC: 260

Authentication type: <Not set>

APN type: default,supl,mms
[Verizon Samsung Galaxy S 4] 7omatero:
Thanks for the tutorial very well explained, i can confirm that my i545 in fact does not have a gsm option under network mode, and do not recognize any gsm sim card at all, i also tried to see if *#0011# work and it does not. i will try your steps now and report back later.
[Verizon Samsung Galaxy S 4] The Amorphist:
Verizon to Sprint

Hey,

I'm getting some mixed signals here.

I got a Verizon Galaxy S4 (SCH-I545) last July. I am looking to take the phone over to Virgin Mobile USA (which I believe is on the Sprint network).

If I'm not mistaken, updating the APN information (which I'm pretty sure you can just google) is really all I'll need to do to change the phone over? That all Galaxy S4's are "globally unlocked" at this point?

Is there a way for me to check if this is true and I'm set up to change over before I pull the trigger?

Does anybody have any recommendations for dealing with customer service? Should I just lie and say that it is a Virgin Mobile phone and I just need it reactivated?

Thanks for all the help,

TheAmorphist

Edit: I'm interested in the same line of questions for T-Mobile as well.
[Verizon Samsung Galaxy S 4] k1mu:
The Verizon SCH-i545 is not SIM locked. You can plug any carrier's GSM SIM, go to GSM mode, enter the APN and it will work as long as that carrier has coverage on one of the bands that the i545 uses.

There's at least 3 or 4 threads answering what you want - using T-Mobile and AT&T at the least, so I suggest looking in this forum for those.
[Verizon Samsung Galaxy S 4] The Amorphist:
Thanks for the speedy reply.

It seems like 4G data is the part I don't understand and can't seem to find answered elsewhere. I've seen really mixed answers on whether or not this will work out of the box, with some changes, or not at all.
[Verizon Samsung Galaxy S 4] k1mu:
That again depends on what bands the carrier you're moving to uses and what the phone does. And that's a moving target.

For example, six months ago I would have told you that the best you'll get on AT&T with an i545 is HSPA+.

However, since the MK2 release unlocked LTE band 4 and since AT&T is also getting into LTE band 4, you can now have 4G LTE in some areas of the country while on the AT&T network. Either way it'll work, but may not have 4G yet in your area.
[Verizon Samsung Galaxy S 4] Terrae:
Making Network Mode Visible for Selection

Okay.. just curious because I've tried and haven't been able to find a way to do it. Has anyone found a way to make the T-Mobile Network Mode visible (they use GSM/WCDMA/LTE as their "preferred network mode")??? just trying to figure out how to get it to show.. I've been in the service mode but I don't see how I can get it to show as an selection option... any ideas anyone?

Also, I'm on a Verizon SG4, Baseband I545VRUEMK2, Android 4.3

Thanks in advance.. :D

Terrae
[Verizon Samsung Galaxy S 4] rb1725:
Your reading and comprehension skills are acceptable. He never called you a lair. He merely implied that you don't know wtf you are doing? I tend to agree with him seeing as I have the same Verizon S4 as you and I can use any GSM network I want. Again, Verizon sells Galaxy S4 UNLOCKED. I'm not sure what you did to screw yours up but it does come unlocked. I suggest you flash back to stock and start over.
[Verizon Samsung Galaxy S 4] semifast:
Thanks for the info. Would these settings work for an ATT mvno like Airvoice ?
[Verizon Samsung Galaxy S 4] Ziida:
hm so im a little confused by the debate. is the consensus that the verizon s4 can work on ATT / T-mobile without any modding? or does it require a custom rom?
[Verizon Samsung Galaxy S 4] k1mu:
Debate? There is none.

The SCH-I545 running a factory stock ROM will allow any carrier's SIM to work. Insert it, set the APN, and you're done.

As I've already posted, that's no guarantee of what kind of service you'll get. Every carrier has frequency ranges (bands) that they use to provide service. If your phone doesn't have a frequency band in common with your carrier, you'll get no service. If your phone doesn't have a 4G frequency band in common with your carrier, you won't get 4G service.

I really don't understand how it can be stated more simply than that. However, there's still people posting questions about "unlocking" their phones.

Seems to me that there's a real business opportunity selling them an "unlock" service that doesn't do anything but lighten their wallets. :D
[Verizon Samsung Galaxy S 4] lucat00:
i think results vary between carriers and firmware versions..

Based on my own phone. An sch-I545 from verizon with an older firmware, I am able to use it on tmobile but only in the edge - gprs (hspa) speeds (global mode). rooting it allowed me to install a newer modem which can use 4g/lte speeds as well (however I can't send txt messages or make calls on 4g/lte. It drops to h+/edge to do that)

Having said that, I also tried to put my simm card on a friends S4 from AT&T (different model though) and it DID NOT work. I believe they put a sim whitelist or something like that (can't remember the specific wording)..

So I guess the answer is it depends on carrier/model/firmware. :)
[Verizon Samsung Galaxy S 4] Ziida:
Thanks for the insight guys, ill give this a try!
[Verizon Samsung Galaxy S 4] volcomyae23:
Can someone elaborate on this?

I installed NC5 on my i545. But I downgraded the baseband to MK2. Can I install this rom?

Thanks!
[Verizon Samsung Galaxy S 4] ryanstein:
Is it true that the prepaid version of the S4 also has an unlocked SIM and if not, will this process unlock it? I want to switch to Verizon prepaid from Gophone, but I have another month with AT&T that I want to use with an S4 before I port over to Verizon.
[Verizon Samsung Galaxy S 4] n0b0di:
There is a slight chance I'm wrong but you won't be able to go from AT&T to Verizon. Your AT&T S4 doesn't have the necessary CDMA hardware for Verizon. Not to mention that Verizon's S4 is unlocked but AT&T'S is not. Verizon cut a deal with the FCC to use certain frequencies & in that deal they were required that all their phones simple cards be unlocked which is why they will work on other gsm systems.
[Verizon Samsung Galaxy S 4] ryanstein:
It's not an AT&T S4, I bought the CPO prepaid Verizon S4 but there have been conflicting reports regarding whether the SIM was unlocked on it. I bought the S4 to replace my aging iPhone 5, so I'd like to start using it rather than wait the month until I port to Verizon if I indeed can pop the AT&T SIM in there (with the nano to micro adapter) and go.
[Verizon Samsung Galaxy S 4] ryanstein:
In case anyone else was planning on doing this, the SIM slot was indeed factory unlocked so I was able to use my new phone day 1! Once my month is up, then I will activate my Verizon SIM and port my phone number.
[Verizon Samsung Galaxy S 4] calebcabob:
Hey! [MENTION=5525044]budding_developer[/MENTION]

I'm so happy I found this thread! I'm trying to get my Verizon S4 working for my wife on T-Mobile! She got the LG G3 last night and because she's so tiny, it's like a tablet to her!:)

Anyways, the Verizon S4 is rooted and is still on original MDK firmware. With that said, I'm not too sure exactly which steps in your guide apply to our situation...not having safe strap and all.

With changing the APN settings to match up to my phone (LG G3 on T-Mobile), and inserting a T-Mobile 4G sim card, I'm able to get calls and SMS working over WiFi on the S4...that's it though. No mobile data seems to be coming through. Her mobile signal icon in the status bar keeps switching back n forth from E to H for some reason...but no LTE or 4G icon.

Anyways, is this something you think you could help with? Or do ya think we're screwed? My sweet wife would be eternally grateful if you or anyone could help to make this happen!!:):):confused:

EDIT: haha, my signature will be changed if I'm able to get this working for her!;)
[Verizon Samsung Galaxy S 4] brizey:
Did you put in a fast.t-mobile.com APN?

T-mobile uses LTE bands 2,4 and 12, but the vast majority is 4 (anyone chime in and correct, but I am pretty sure this is correct). I think 2 is going out and 12 is new and just getting going.

Verizon had mostly used band 17 until recently, and they now also use 4, but the change happened after the s4 was released. So...one thing is that you need to be on a recent modem. I think MK2 is where they added band 4 LTE. I am betting this is your issue given your statement about being on the original MDK firmware.

Edit: went back to the modem thread. I think it was MJ7 that added band 4.

Also, you can try just flashing an international ROM or T-mobile ROM, then running a loki-doki script so the kernel works. I think a lot of the international ROMs have T-Mobile APNs already in them.
[Verizon Samsung Galaxy S 4] calebcabob:
Oh wow, I didn't even think of that...T-Mobile ROM with LokiDoki. Nice info on the bands too! So I'll try that and if I can't get the radio working, I'll flash MJ7 or anything past...? Thanks for the help man!! I'll post my results:good:

---------- Post added at 08:05 PM ---------- Previous post was at 08:02 PM ----------

Lastly, how do I edit which bands I want the phone to use? Or is that just automatic with the radio you're on?
[Verizon Samsung Galaxy S 4] brizey:
The thread in this sub forum on AWS has the info on band selection. FWIW, I had what had to be AWS (50 MB/s + download) without activating anything, it just happened when in AWS coverage. And AWS is band 4 for Verizon.
[Verizon Samsung Galaxy S 4] budding_developer:
Unless you flash over the stock Verizon ROM, you will not be able to utilize any US GSM carrier -- as explained in my OP, Verizon locks out all US GSM carriers in their rom's RIL so that you supposedly can't take your phone anywhere else. You may be able to flash a T-Mobile ROM, but make sure that it DOES NOT update the bootloader. You can also flash an earlier version of HyperDrive with it's compatibility pack which will give you the T-Mobile/ AT&T capabilities -- you'll have to enter the APN's yourself.
[Verizon Samsung Galaxy S 4] ryanstein:
Except that directly contradicts what I found with my S4 as well as FCC regulation when Verizon rolled out LTE. Their bargain was that they would include the SIM slot unlocked, as such I was able to just pop in my AT&T SIM no problem, no flashing or anything necessary.
[Verizon Samsung Galaxy S 4] Topsnake:
Incorrect. Verizon agreed to not carrier lock when they began deploying a certain LTE band.

You can place a sim in any non rooted VZW Galaxy S4 and Note 3 and as long as APN is correctly entered, it will work. I should know, I have both and did it on both.
[Verizon Samsung Galaxy S 4] budding_developer:
You're free to think what you want, but please never make the inane assumption that the major cell carriers actually abide by agreements or that your device just happens to be the rule instead of the exception.

Two of my devices were obtained from Verizon long before the "agreement" you cite; the third device was obtained from Verizon long after it. All the devices exhibit the same behavior when flashed with the stock Verizon firmware -- when a SIM from a US GSM carrier is inserted, yes, it does indeed give you cellular signal bars, but does not log onto any cellular or data network at all. The GSM/UMTS capability of the devices is disabled, and they will not function on any US GSM/UMTS network at all. However, when an active SIM from the UK is inserted, this functionality returns.

However, once the procedure in my original post is followed -- thereby replacing the stock Verizon firmware (along with its integral RIL files) all three devices function well on the AT&T and T-Mobile cellular and 4-G data networks. Please don't argue this with me; I am using my tablet to send this reply which is connected to the Internet through one of these devices on a 4-G T-Mobile data connection using FoxFi Pro for hot spot tethering.

Verizon is well known for only abiding by contacts and agreements when doing so is in their financial interests and being caught in violation has little or no penalty for them. Additionally, when that agreement was made Verizon had thousands of non-compliant phones already in their supply pipeline; surely you cannot be so naive as to think that they would actually recall all of these units just to re-flash them with compliant firmware, can you? If so, then I have a bridge I can offer you an excellent deal on.
[Verizon Samsung Galaxy S 4] Topsnake:
This is not an assumption. Its fact. A simple search on you're behalf would turn up the same results. Your results most likely vary due to operator error.

However I can assure you that the VZW variants of the S4,S5, Note 3, Moto X, Droid Maxx, Droid Ultra, and Mini work on US GSM carriers. The exception being that on Samsung devices the APN is required to be entered or it will not connect to data or send MMS. On all phones they do need to be set to global mode. My personal GSM carrier is T-Mobile which I've used all the above devices on, un-rooted. Matter of fact I'm typing to you on my GS4 as we speak.

I implore you to test this fact. Flash back to stock, pop in the sim, enter the correct APN and it will work. The reason it works right off the bat with ATT/Mobile roms is because they come with the APN pre-entered. VZW roms don't, but that is not to say that they don't connect when configured.

Perhaps you want me to educate you more since you are just starting off as a "dev." Be assured some of us have been around the block.

Maybe [MENTION=2509024]samwathegreat[/MENTION] could enlighten you a little more.
[Verizon Samsung Galaxy S 4] calebcabob:
I got it working!!

I was able to get my vzw Galaxy S4 working with T-Mobile!! Here's what I did:

1. Be sure you're on a radio/baseband released from Oct 2013 or later - I used NC5

2. Using TWRP, I flashed [MENTION=522448]Fenny[/MENTION]'s T-Mobile based ROM found HERE.

3. VERY IMPORTANT!! Before rebooting, I flashed the Loki-Doki patch. Thanks [MENTION=4205816]brizey[/MENTION] for this idea;) :good::good::good:

4. I really don' think I had to do anything else other than making sure the 4G/LTE T-Mobile sim card was inserted.

Everything works perfectly! WiFi calling (T-Mobile feature) is working perfectly as well. Yeah, thats about it. I could NOT have done this without the help and ideas of you guys! Thanks so much:)
[Verizon Samsung Galaxy S 4] Topsnake:
Caleb would you do me the favor of testing my theory above? Flash to stock, flash the updated baseband, then enter the correct APN.

---------- Post added at 10:25 AM ---------- Previous post was at 10:08 AM ----------

Further proof. See the post linked below. There are a few screen shots attached to it which show exact APN settings for LTE/MMS/HSPA+ on T-Mobile. The post originated in the VZW note 3 forum, however the APN settings are universal for T-Mo

In some instances, APNs cannot be changed until you have the carrier's sim in the phone.

http://xdaforums.com/showthread.php?p=54425052
[Verizon Samsung Galaxy S 4] calebcabob:
Well, I really don't want to mess with my setup any further. I can tell u that I did try that initially...I had to switch to global for the calls and texts to work, but the one BIG issue was that I could NOT get any mobile data to work. No internet, MMS, etc
[Verizon Samsung Galaxy S 4] Topsnake:
Right, that is because you needed to enter the APN for data.

For reference. Simply add the apn below.

Name: T-Mobile LTE

APN: fast.t-mobile.com

Then in the MMS field enter

http://mms.msg.eng.t-mobile.com/mms/wapenc

In APN type type: default,supl,mms

After entering these values, it will connect to data and MMS services.
[Verizon Samsung Galaxy S 4] calebcabob:
I mean, the process I had listed isn't difficult at all. The only extra step is to flash Loki, ha. You're flashing a stock based ROM (T-Mobile rather than Verizon). I didn't have to mess with ANYTHING at all after that. In fact, I had 4G signal before even connecting to WiFi in the setup wizard.

---------- Post added at 02:25 PM ---------- Previous post was at 02:23 PM ----------

I entered the APN. I'm telling you, I tried that entire process first. Without the T-Mobile APN settings entered in, I wouldn't have even gotten calls or texts to work.

---------- Post added at 02:27 PM ---------- Previous post was at 02:25 PM ----------

But again, even with the correct APN settings on the Verizon based ROM, I had no mobile data.

---------- Post added at 02:31 PM ---------- Previous post was at 02:27 PM ----------

No offence, but the process your suggesting was the very first thing I tried. Believe me, I wished it had worked. But now that I know how simple it is to get T-Mobile service fully working, I just thought I'd share it with anyone else in my situation.
[Verizon Samsung Galaxy S 4] Topsnake:
Right this is because the GSM roms come prebuilt with APNs.

Odd that it didnt work for you, when entered correctly there shouldn't be any issue. It's not like samsung decided to lock 1 out of 1000 phones just to screw with people.
[Verizon Samsung Galaxy S 4] calebcabob:
Even if you COULD get T-Mobile services fully working by simply changing the APN settings, you'd be missing their WiFi calling feature, which to me is essential in my situation.

Anyone else wanna chime in here?
[Verizon Samsung Galaxy S 4] Topsnake:
This is very true and I agree. The one downfall is the absence of WiFi calling. However my point, and others that have echoed it in this thread, is that the notion that you cannot run T-Mobile in stock form, is incorrect
[Verizon Samsung Galaxy S 4] calebcabob:
So you're also stating that what I'm saying is correct? Look at that, the 2 people in this thread who actually tried it.

---------- Post added at 03:46 PM ---------- Previous post was at 03:44 PM ----------

When you say "stock form" are you talking about a Verizon stock ROM or a T-Mobile stock ROM?
[Verizon Samsung Galaxy S 4] Topsnake:
I agree that the WiFi calling function does not work unless on a TMobile ROM.

By stock I mean on stock VZW ROM. Again I type this to you, on my stock, non rooted S4 running T-Mobile LTE.
[Verizon Samsung Galaxy S 4] budding_developer:
I see what you're trying to get at. And I believe you are probably right about flashing a T-Mobile rom.

When I first left Verizon, I experimented quite a bit trying to get my S-4's working on -- at the time -- the AT&T GoPhone service. I found an ICS AT&T rom that had been rooted, deodexed & debloated, but otherwise was a stock I337 rom. I used SafeStrap to wipe the system partition and flash this rom in its place, then flash the WiFi drivers for the original firmware (downloaded from xda). I bought a GoPhone sim and it worked flawlessly upon boot -- voice, text & data, just like a stock I337 that had been rooted.

So, everything being equal, I don't see why someone wouldn't be able to do the same with a rom from the M919 T-Mobile S-4 ICS ROM.

Now, I have no idea if this would work for the KK-based rom.
[Verizon Samsung Galaxy S 4] calebcabob:
When I had attempted to get T-Mobile's service fully running on my VZW S4, I had tried it by updating my radio and using the identical APN settings from my T-Mobile G3. Once I realized how unstable it seemed, I decided to flash a stock-based ROM...only instead of flashing a Verizon one, I flashed the T-Mobile base from Fenny. I'm sure you know a lot about Android and rooting & romming and a bunch more in between. I'm just saying from my experience, seeing how I needed WiFi calling working (poor service in my house), it made sense to flash a T-Mobile base, rather than Verizon. So, I posted my findings from personal trial & error to help those who need FULL functionality of T-Mobile's service on their device, as I did too. That was the whole point of my post. When I had first applied the T-Mobile APN settings (several times) to the Verizon ROM I had, it was actually to Hyperdrive I believe.

Anyways, if anyone needs help getting their T-Mobile service working on their device, feel free to PM me if you get stuck! I probably won't be checking in on Verizon's threads too much for here on out...I ready miss the customization and the ROM selection from the vzw S4:( It's now my wife's phone though. Pretty sure she doesn't want me flashing ROMS and mods on it like I once did, haha!:( I can't wait for further development on the G3!! It'll get there;)

Peace friends!